Dietary beta-1,3 glucan potentiates innate immunity and disease resistance of Asian catfish, Clarias batrachus (L.)

This study investigated the effects of short and prolonged administration of a yeast beta-glucan on non-specific immune parameters, growth rate and the disease resistance of Asian catfish, Clarias batrachus. Fish fed with a basal diet (control) and test diet (basal diet supplemented with 0.1% glucan...

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Veröffentlicht in:Journal of fish diseases. - 1998. - 29(2006), 2 vom: 01. Feb., Seite 95-101
1. Verfasser: Kumari, J (VerfasserIn)
Weitere Verfasser: Sahoo, P K
Format: Aufsatz
Sprache:English
Veröffentlicht: 2006
Zugriff auf das übergeordnete Werk:Journal of fish diseases
Schlagworte:Journal Article Adjuvants, Immunologic beta-Glucans Nitroblue Tetrazolium 298-83-9 Complement System Proteins 9007-36-7 beta-1,3-glucan 9051-97-2 Peroxidase mehr... EC 1.11.1.7 Muramidase EC 3.2.1.17
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245 1 0 |a Dietary beta-1,3 glucan potentiates innate immunity and disease resistance of Asian catfish, Clarias batrachus (L.) 
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520 |a This study investigated the effects of short and prolonged administration of a yeast beta-glucan on non-specific immune parameters, growth rate and the disease resistance of Asian catfish, Clarias batrachus. Fish fed with a basal diet (control) and test diet (basal diet supplemented with 0.1% glucan) for 1, 2 and 3 weeks were assayed for superoxide production, serum myeloperoxidase (MPO) content, natural haemagglutinin level, complement and lysozyme activities. Fish were weighed at weekly intervals and specific growth rate (SGR, % increase in body weight per day) was determined. After each week, fish were challenged with Aeromonas hydrophila to measure the level of protection. Results showed that glucan administration at 0.1% in feed, significantly (P<0.05) enhanced MPO and lysozyme levels, superoxide production, haemagglutination titre and level of protection against A. hydrophila challenge, irrespective of length of exposure. The alternative complement activity and SGR were not affected by the dietary supplementation of yeast glucan. As glucan feeding at 0.1% for 1 week is able to enhance the non-specific immunity and disease resistance of catfish efficiently, short-term feeding might be used in farmed catfish diets to enhance disease resistance 
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650 7 |a Adjuvants, Immunologic  |2 NLM 
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650 7 |a Nitroblue Tetrazolium  |2 NLM 
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650 7 |a 9051-97-2  |2 NLM 
650 7 |a Peroxidase  |2 NLM 
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650 7 |a Muramidase  |2 NLM 
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700 1 |a Sahoo, P K  |e verfasserin  |4 aut 
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